Safety shield for construction site management

Abstract

The application discloses a safety protection device for construction engineering management, which comprises a first rail and a plurality of second rails in annular array, the first rail and the second rails are fixedly connected with first fixing seats, the first fixing seats are rotationally connected with guardrails, the guardrails are coaxially rotationally connected at opposite ends, the bottom ends of the first rail and the second rails are fixedly connected with bases, the bottom ends of the bases are fixedly connected with universal wheels, an adjusting mechanism is arranged on the first rail and is used for pushing the plurality of second rails to expand and store, in addition, an auxiliary mechanism is used for fixing and supporting the first rail on the ground, and a warning mechanism is used for warning construction personnel, the safety protection device is automatically expanded and stored through the adjusting mechanism, effectively solves the problems of complex installation, insufficient stability and lack of warning function of the existing safety protection device, and the safety and management efficiency of the construction site are improved.

Description

Technical Field

[0007]

[0001] The present invention relates to the technical field of safety protection in construction project management, and particularly to a safety protection device for construction project management. Background Technique

[0002] During the construction process of a building project, construction openings (such as elevator shaft openings, stairway openings, reserved openings, etc.) are common hazard sources. These openings are usually large in size and deep in depth. If construction workers accidentally approach or fall into the openings during the construction process, it is extremely easy to cause a falling accident, resulting in serious personal injuries or even death. According to relevant statistical data, falling accidents from heights are one of the accident types with the highest occurrence frequency and greatest harm in building construction, and construction openings are one of the main causes of falling accidents from heights.

[0003] A Chinese patent with the publication number CN219794902U includes connecting columns and a partition net. The connecting columns are arranged symmetrically left and right. A placement frame is installed at the inner end of the connecting column, and a partition net is installed in the placement frame. A limiting plate is installed on the upper surface of the partition net, and the limiting plate is connected to the placement frame through fixing bolts. The fixing bolts are arranged symmetrically before and after the limiting plate. <00​​​​​​​​​​​To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A safety protection device for construction project management, comprising a first railing and a plurality of second railings arranged in a circular array with the first railing as the center, the first railing and the second railing are fixedly connected to a plurality of first fixing seats of a linear array at symmetrical positions on both sides near the ends, each of the first fixing seats is connected to a guardrail for fencing a construction opening by a fixed axis rotation, the opposite ends of each adjacent two guardrails are connected to the same axis rotation, the bottom ends of the first railing and the second railing are fixedly connected to a base, the bottom end of each base is fixedly connected to a universal wheel for construction workers to push the first railing and the second railing to move on the ground, and the first railing is provided with an adjustment mechanism for pushing the plurality of second railings to be unfolded and stored.

[0008] Preferably, the outer contours of the first railing and the second railing near the bottom end are both provided with cylindrical sleeves that can be lifted and reciprocated, and the outer contours of each cylindrical sleeve at symmetrical positions on both sides are fixedly connected to a second fixing seat, and each of the second fixing seats is rotatably connected to a telescopic rod that pushes the second railing to be unfolded and stored, and the center position where each two adjacent telescopic rods intersect is penetrated and rotatably connected.

[0009] Preferably, the first railing and the second railing are fixedly connected to third fixing seats at symmetrical positions on both sides near the bottom end, and one end of each telescopic rod away from the second fixing seat is respectively connected to the third fixing seat on the adjacent side for fixed axis rotation.

[0010] Preferably, the adjustment mechanism includes lifting grooves at symmetrical positions on both sides of the first railing near the bottom end, and the inner walls of the lifting grooves on both sides are movably connected with lifting blocks that can move up and down, and the opposite ends of the two lifting blocks are fixedly connected to the inner walls of the cylindrical sleeves at corresponding positions.

[0011] Preferably, a cavity connected to the lifting groove is provided on the first railing, and the inner wall of the cavity is connected to a threaded sleeve rod that pulls the cylindrical sleeve to perform lifting and reciprocating movements. The opposite ends of the two lifting blocks are fixedly supported on the outer contour of the threaded sleeve rod, and the end of the first railing is penetrated and connected to a threaded rod driven to rotate by a power mechanism through a fixed axis, and the inner wall of the threaded sleeve rod is penetrated by the threaded rod and screwed.

[0012] Preferably, a fixed block is fixedly connected to the cylindrical sleeve near the bottom of the first railing, the end of the fixed block is fixedly connected to the track rod, the inner wall of the track rod is connected to the moving block for lifting and moving, the bottom end of the moving block is fixedly connected to the insertion rod that fixes and supports the first railing on the ground, and the base is provided with an auxiliary mechanism for driving the insertion rod to be inserted into the ground.

[0013] Preferably, the auxiliary mechanism includes a fixed rod fixedly connected to the base near one side of the track rod, the end of the fixed rod is rotatably connected to an inclined rod, the opposite surface of the inclined rod and the fixed rod is fixedly connected to a torsion spring for guiding the inclined rod to reset and rotate, the side of the inclined rod near the moving block is fixedly connected to a first clamping block for locking the moving block, and the side of the moving block near the inclined rod is fixedly connected to a second clamping block engaged with the first clamping block.

[0014] Preferably, the end of the track rod is fixedly connected to a side away from the fixed block with a slope block adapted to the slope of the slope rod, the slope block is penetrated and connected to a limit rod for supporting the moving block for lifting and lowering movement, and the bottom end of the limit rod is fixedly connected to the moving block, and the opposite surface of the slope block and the moving block is fixedly connected with a spring for guiding the moving block to perform reset movement.

[0015] Preferably, the second railing is provided with a warning mechanism for warning construction workers, and the warning mechanism includes a warning light fixedly connected to the end of each second railing, and a push switch fixedly connected to the bottom end of the cavity and electrically connected to the warning light.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The adjustment mechanism enables efficient deployment and storage of guardrails, significantly improving the safety and protection efficiency and flexibility of construction sites. The motor drives the threaded rod to rotate, and the threaded sleeve rod is lifted and lowered under the action of the threaded rod, thereby driving the movement of the cylindrical sleeve and telescopic rod to achieve automatic deployment and storage of guardrails. This avoids the tedious process of manually installing and removing guardrails one by one in traditional protective devices, greatly saving construction workers' time and physical strength, and improving construction efficiency.

[0018] During the construction process, the rapid deployment of the guardrail can provide timely safety protection for the construction opening, preventing construction workers from accidentally falling due to inadequate opening protection. At the same time, the storage function enables the protective device to be quickly folded and stored when not in use, reducing the floor space, facilitating transportation and storage, and further reducing safety risks at the construction site.

[0019] 2. Through the auxiliary mechanism, the protective device can be quickly folded and stored when not in use, reducing the floor space, facilitating transportation and storage, and further reducing the safety risks at the construction site. When the guardrail is unfolded, the inclined surface of the inclined surface block interacts with the inclined surface of the inclined surface rod, pushing the inclined surface rod to rotate, so that the first block is disengaged from the second block. At this time, the spring pushes the moving block to move downward quickly under its own elastic force, driving the insertion rod to be inserted into the ground, firmly fixing the protective device to the ground. The fixing of the protective device can be completed in a short time, ensuring its stability during the construction process.

[0020] 3. By setting up warning lights and push switches on the guardrails, a significant safety warning function is provided for the construction site, further enhancing the safety awareness and protection effect of construction workers. When the guardrails are unfolded and fixed in place, the downward movement of the threaded sleeve will trigger the push switch, causing the warning light to automatically light up, which can promptly remind construction workers of the existence of construction openings and avoid entering dangerous areas due to negligence or poor visibility, thereby effectively preventing the occurrence of height-falling accidents.

[0021] At night or in dimly lit construction environments, the lighting of the warning light not only serves as a warning, but also provides necessary lighting for construction workers. By forming a bright warning area around the guardrails, construction workers can more clearly identify the location of the construction opening and avoid collisions or falls caused by obstructed vision.

[0022] The coordinated use of the above-mentioned structure solves the problem that in actual use of the existing device, the adjustment mechanism requires staff to install and fix multiple guardrails on site, and they need to be quickly disassembled and reinstalled when the construction location is frequently changed. The installation process is complicated, time-consuming and labor-intensive, and therefore it is difficult to automatically adjust the guardrails to unfold or retract. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in the middle;

[0025] Figure 3 For the present invention Figure 1 Schematic diagram of the structure at B in the middle;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the protective railing of the present invention;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the track rod portion of the present invention;

[0028] Figure 6 This is a schematic cross-sectional view of the three-dimensional structure of the first railing of the present invention;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at C in the middle;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the portion where the moving block of the present invention is located;

[0031] Figure 9 This is a schematic diagram of the three-dimensional structure of the movable block in the locked state of the present invention.

[0032] In the figure: 1. first railing; 101. cavity; 102. lifting groove; 2. second railing; 3. first fixed seat; 4. guardrail; 5. base; 6. universal wheel; 7. cylindrical sleeve; 8. second fixed seat; 9. telescopic rod; 10. third fixed seat; 11. lifting block; 12. threaded sleeve rod; 13. threaded rod; 14. track rod; 15. moving block; 16. insertion rod; 17. inclined block; 18. limit rod; 19. spring; 20. fixing rod; 21. inclined rod; 22. first clamping block; 23. second clamping block; 24. torsion spring; 25. fixing block; 26. warning light; 27. press switch. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1:

[0034] See also Figures 1 to 9 The present invention provides a technical solution: a safety protection device for construction project management, comprising a first railing 1 and a plurality of second railings 2 in a circular array with the first railing 1 as the center, the first railing 1 and the second railing 2 are fixedly connected to a plurality of first fixing seats 3 of a linear array at symmetrical positions on both sides near the end, each of the first fixing seats 3 is rotatably connected to a guardrail 4 for fencing a construction opening, the opposite ends of each adjacent two guardrails 4 are coaxially rotatably connected, the bottom ends of the first railing 1 and the second railing 2 are fixedly connected to a base 5, the bottom end of each base 5 is fixedly connected to a universal wheel 6 for construction workers to push the first railing 1 and the second railing 2 to move on the ground, and the first railing 1 is provided with an adjustment mechanism for pushing the plurality of second railings 2 to unfold and retract.

[0035] When in use, by setting the first railing 1 and the second railing 2, the first railing 1 and the second railing 2 can be placed in a circular row, and the first fixing seat 3 set on the first railing 1 and the second railing 2 can fix the first fixing seat 3 on the symmetrical positions on both sides of the first railing 1 and the second railing 2 respectively. The guardrail 4 is set on the first fixing seat 3, and the opposite ends of each adjacent two guardrails 4 are connected by fixed axis rotation, so that the guardrail 4 can support the position of the first railing 1 and the second railing 2, ensuring the stability between the first railing 1 and the second railing 2, so as to facilitate the subsequent deployment and storage of multiple second railings 2.

[0036] Through the base 5 set on the first railing 1 and the second railing 2, the base 5 can be fixedly supported on the bottom ends of the first railing 1 and the second railing 2. Through the universal wheels 6 set on the base 5, and the universal wheels 6 in contact with the ground, personnel can use the universal wheels 6 to move the first railing 1 and the second railing 2 to the construction opening position, thereby improving the flexibility of the device and avoiding the time-consuming and labor-intensive transportation problem of construction personnel. Through the adjustment mechanism set on the first railing 1, the adjustment mechanism can unfold multiple second railings 2 to protect the construction opening, and at the same time can store multiple second railings 2, reducing the floor space of the first railing 1 and the second railing 2. Example 2:

[0037] On the basis of the first embodiment, further steps are as follows:

[0038] The outer contours of the first railing 1 and the second railing 2 near the bottom end are both sleeved with cylindrical sleeves 7 for lifting and reciprocating movement. The outer contours of each cylindrical sleeve 7 at the symmetrical positions on both sides are fixedly connected to a second fixing seat 8. Each of the second fixing seats 8 is rotatably connected to a telescopic rod 9 for pushing the second railing 2 to unfold and store. The center position where each two adjacent telescopic rods 9 intersect is penetrated and rotatably connected.

[0039] The first railing 1 and the second railing 2 are fixedly connected to third fixing seats 10 at symmetrical positions on both sides near the bottom ends, and one end of each telescopic rod 9 away from the second fixing seat 8 is respectively connected to the third fixing seat 10 on the adjacent side for fixed axis rotation.

[0040] During use, the cylindrical sleeve 7 provided on the first railing 1 and the second railing 2 enables the cylindrical sleeve 7 to be lifted and moved and connected on the outer contour of the first railing 1 and the second railing 2, and the second fixed seat 8 provided on the cylindrical sleeve 7, the second fixed seat 8 is fixedly supported on the cylindrical sleeve 7, and the telescopic rod 9 provided on the second fixed seat 8 is supported on the second fixed seat 8 by fixed-axis rotation. Through the third fixed seat 10 provided on the first railing 1 and the second railing 2, the telescopic rod 9 can be supported on the third fixed seat 10 on the adjacent side by fixed-axis rotation at one end away from the second fixed seat 8, and the fixed-axis rotation connection at the center position where each two adjacent telescopic rods 9 intersect further improves the stability between the first railing 1 and multiple second railings 2. Example 3:

[0041] On the basis of the second embodiment, further steps are as follows:

[0042] The adjustment mechanism includes lifting grooves 102 on both sides of the first railing 1 near the bottom symmetrical position, and the inner walls of the lifting grooves 102 on both sides are movably connected with lifting blocks 11 for lifting and reciprocating movement, and the opposite ends of the two lifting blocks 11 are fixedly connected to the inner walls of the cylindrical sleeve 7 at the corresponding position.

[0043] The first railing 1 is provided with a cavity 101 connected to the lifting groove 102. The inner wall of the cavity 101 is connected to a threaded sleeve 12 that pulls the cylindrical sleeve 7 to move up and down. The opposite ends of the two lifting blocks 11 are fixedly supported on the outer contour of the threaded sleeve 12. The end of the first railing 1 is penetrated and connected to a threaded rod 13 driven by a power mechanism for fixed axis rotation, and the inner wall of the threaded sleeve 12 is penetrated by the threaded rod 13 and screwed.

[0044] When in use, the lifting block 11 is fixedly supported on the cylindrical sleeve 7 at the corresponding position through the lifting groove 102 opened on the first railing 1 and the lifting block 11 provided on the lifting groove 102, and the lifting groove 102 supports the moving direction of the lifting block 11, so that the lifting block 11 can be synchronously lifted and moved along with the cylindrical sleeve 7. The cavity 101 provided on the first railing 1 is connected with the inner wall of the lifting groove 102, and the threaded sleeve 12 provided on the lifting block 11 can fix the threaded sleeve 12 on the lifting block 11, and the threaded sleeve 12 can be fixedly supported on the lifting block 11. The sleeve rod 12 can be synchronously lifted and moved along with the lifting block 11 on the inner wall of the cavity 101, through the threaded rod 13 set on the first railing 1, and the threaded rod 13 is driven to rotate by the motor after power is turned on. When the motor is started, the motor can drive the threaded rod 13 to perform fixed-axis reciprocating rotation on the first railing 1, and the threaded rod 13 passes through the inner wall of the threaded sleeve rod 12 and is screwed, and the threaded rod 13 is rotated along the fixed-axis reciprocating rotation, so that the threaded sleeve rod 12 can drive the cylindrical sleeve 7 to be lifted and reciprocated on the first railing 1 through the lifting block 11 under the action of the threaded rod 13.

[0045] like Figure 1-Figure 7As shown, the column sleeve 7 is located at the extreme position at the bottom end of the first railing 1 and the second railing 2. At this time, the multiple second railings 2 are in the unfolded state and protect the construction opening. When the second railing 2 is stored, the threaded rod 13 is first used to drive the threaded sleeve rod 12 to move in the upward vertical direction, so that the lifting block 11 can pull the column sleeve 7 along the outer contour of the first railing 1 in the upward vertical direction under the action of the threaded sleeve rod 12, and the telescopic rod 9 is rotatably supported on the third fixed seat 10. Then, the telescopic rod 9 can pull multiple The second railing 2 is synchronously retracted and moved toward the side close to the first railing 1, and at the same time, the columnar sleeve 7 on the second railing 2 can be synchronously moved in the upward vertical direction, and the guardrail 4 is rotatably supported on the first fixed seat 3. As the second railing 2 is retracted and moved toward the side close to the first railing 1, every two adjacent guardrails 4 can be synchronously folded and stored, thereby releasing the protection of the construction opening, so that the protective device can be quickly folded and stored when not in use, reducing the floor space, facilitating transportation and storage, and further reducing the safety risks at the construction site.

[0046] When it is necessary to protect the construction opening, the construction workers first move the first railing 1 to the ground on one side of the construction opening. At this time, the threaded rod 13 drives the threaded sleeve rod 12 to reset in the downward vertical direction, and the above-mentioned structure can synchronously reset in the opposite direction. Then, the cylindrical sleeve 7 can push the second railing 2 toward the side away from the first railing 1 through the telescopic rod 9 under the action of the threaded sleeve rod 12, and multiple second railings 2 can be evenly surrounded on the ground around the construction opening. At the same time, the protective railing 4 can be extended to a horizontal state under the action of the second railing 2 and fenced around the construction opening, thereby realizing protection around the construction opening and preventing construction workers from mistakenly entering the opening and causing safety accidents such as accidental falling.

[0047] By using the above-mentioned structure in combination, the guardrail 4 can be automatically deployed and stored, avoiding the tedious process of manually installing and disassembling the guardrail 4 one by one in traditional protective devices, greatly saving the time and physical strength of construction workers and improving construction efficiency. Example 4:

[0048] On the basis of the third embodiment, further steps are as follows:

[0049] A fixed block 25 is fixedly connected to the cylindrical sleeve 7 near the bottom of the first railing 1, and the end of the fixed block 25 is fixedly connected to the track rod 14. The inner wall of the track rod 14 is connected to the moving block 15 for lifting and moving. The bottom end of the moving block 15 is fixedly connected to the insertion rod 16 that fixes and supports the first railing 1 on the ground. The base 5 is provided with an auxiliary mechanism for driving the insertion rod 16 to be inserted into the ground.

[0050] During use, through the fixed block 25 provided on the cylindrical sleeve 7 and the track rod 14 provided on the fixed block 25, the fixed block 25 can fix the track rod 14 on the cylindrical sleeve 7, and through the movable block 15 provided on the track rod 14, the movable block 15 is movably supported on the inner wall of the track rod 14, and the insertion rod 16 provided on the movable block 15 enables the movable block 15 to drive the insertion rod 16 to synchronously lift and move the connection on the inner wall of the track rod 14, and through the auxiliary mechanism provided on the base 5, the auxiliary mechanism can drive the insertion rod 16 to be inserted into the ground, thereby improving the stability of the protective device and avoiding displacement and rollover due to collision. Embodiment 5:

[0051] On the basis of the fourth embodiment, further steps are as follows:

[0052] The auxiliary mechanism includes a fixed rod 20 fixedly connected to the base 5 on the side close to the track rod 14, and the end of the fixed rod 20 is connected to the inclined rod 21 for fixed axis rotation, and the inclined rod 21 and the fixed rod 20 are fixedly connected to the opposite surface with a torsion spring 24 for guiding the inclined rod 21 to reset and rotate, and the inclined rod 21 is fixedly connected to the side close to the moving block 15 with a first clamping block 22 for locking the moving block 15, and the moving block 15 is fixedly connected to the side close to the inclined rod 21 with a second clamping block 23 that engages with the first clamping block 22.

[0053] The end of the track rod 14 is fixedly connected to a side away from the fixed block 25, which is adapted to the inclined surface of the inclined rod 21. A limiting rod 18 is passed through the inclined block 17 and is connected to support the moving block 15 for lifting and lowering. The bottom end of the limiting rod 18 is fixedly connected to the moving block 15. A spring 19 is fixedly connected to the opposite surface of the inclined block 17 and the moving block 15 to guide the moving block 15 to perform a reset movement.

[0054] When in use, the fixing rod 20 provided on the base 5 is fixedly supported on the base 5, and the inclined rod 21 provided on the fixing rod 20 enables the inclined rod 21 to be connected to the fixing rod 20 for fixed-axis rotation, and the torsion spring 24 provided on the inclined rod 21 can support the position of the inclined rod 21. In the initial state, the inclined rod 21 can maintain a vertically parallel state with the track rod 14 under the action of the torsion spring 24, and the inclined block provided on the track rod 14 can be used to fix the inclined rod 21 on the fixed rod 20. 17, the inclined plane block 17 is fixedly supported on the track rod 14, and the inclined plane block 17 is adapted to the inclined plane on the inclined plane rod 21. The limiting rod 18 provided on the inclined plane block 17 can make the limiting rod 18 move up and down and reciprocate on the inclined plane block 17. The spring 19 provided on the inclined plane block 17 and the limiting rod 18 are fixedly supported on the moving block 15, so that the spring 19 can support the position of the moving block 15, so that the spring 19 can subsequently push the moving block 15 to reset.

[0055] like Figure 4 、 Figure 5 、 Figure 7 and Figure 9 As shown, when the second railing 2 is stored on one side of the first railing 1, the first railing 1 drives the track rod 14 to the extreme position at the top of the lifting groove 102 through the fixed block 25, and the first clamping block 22 set on the inclined rod 21 and the second clamping block 23 set on the moving block 15 are moved. Figure 9 As shown, at this time, the first clamping block 22 and the second clamping block 23 are in the engaged state and lock the position of the moving block 15. When the cylindrical sleeve 7 moves in the downward vertical direction to unfold the second railing 2, the fixed block 25 can be driven by the cylindrical sleeve 7 to move the track rod 14 in the downward direction synchronously, and the moving block 15 remains stationary under the action of the first clamping block 22 and the second clamping block 23. The track rod 14 drives the inclined block 17 to move toward the end close to the moving block 15, and the spring 19 is pressurized and contracted under the action of the inclined block 17. When the surfaces are in contact and move, the inclined rod 21 can be rotated in the direction away from the track rod 14 under the action of the inclined block 17, and the first clamping block 22 moves under the action of the track rod 14 to disengage and contact the second clamping block 23, so that the spring 19 can push the moving block 15 to move quickly in the downward vertical direction under the action of its own elastic force, and the moving block 15 can drive the insertion rod 16 to be quickly inserted into the ground under the action of gravity acceleration, thereby fixing the position of the first railing 1, ensuring the stability of the protective device, and avoiding the problem of displacement or rollover of the protective device due to external collision.

[0056] As the inclined rod 21 rotates in the direction away from the track rod 14, the torsion spring 24 rotates and contracts under the action of the inclined rod 21. When the cylindrical sleeve 7 moves in the upward vertical direction to store the second railing 2, the inclined block 17 can be pulled out of the ground through the limit rod 18 under the action of the track rod 14. As the inclined block 17 disengages from the inclined rod 21, the torsion spring 24 can drive the inclined rod 21 to reset and rotate in the direction close to the track rod 14, and at the same time the first clamping block 22 can be in a clamping state with the second clamping block 23. Example 6:

[0057] On the basis of the fifth embodiment, further steps are as follows:

[0058] The second railing 2 is provided with a warning mechanism for warning construction workers. The warning mechanism includes a warning light 26 fixedly connected to the end of each second railing 2, and a push switch 27 electrically connected to the warning light 26 fixedly connected to the bottom end of the cavity 101.

[0059] When in use, the warning light 26 is fixedly supported on the second railing 2 by the warning light 26 provided on the second railing 2, and the push switch 27 provided on the cavity 101 is electrically connected to the warning light 26. When the threaded sleeve 12 moves downward in the vertical direction to the extreme position, the bottom end of the threaded sleeve 12 contacts and presses the push switch 27. At this time, the push switch 27 energizes the warning light 26, so that the warning light 26 can light up to warn the construction workers, and can promptly remind the construction workers of the existence of the construction hole, so as to avoid entering the dangerous area due to negligence or poor vision, thereby effectively preventing the occurrence of height-falling accidents. At the same time, in an environment with poor visibility at night, the warning light 26 can illuminate the surrounding environment of the construction hole. By forming a bright warning area around the guardrail 4, the construction workers can more clearly identify the location of the construction hole and avoid collisions or falling accidents caused by obstructed vision.

[0060] Furthermore, the existing device can automatically adjust the guardrail to be unfolded or retracted during actual use, which is convenient to use and better than traditional products.

[0061] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for construction project management, characterized by: The invention comprises a first railing (1) and a plurality of second railings (2) in a circular array with the first railing (1); the first railing (1) and the second railing (2) are fixedly connected to a plurality of first fixed seats (3) in a linear array at symmetrical positions on both sides near the end; each of the first fixed seats (3) is connected to a guardrail (4) for fencing a construction opening in a fixed-axis rotation manner; the opposite ends of each two adjacent guardrails (4) are connected to the same axis for rotation; the bottom ends of the first railing (1) and the second railing (2) are fixedly connected to a base (5); the bottom end of each base (5) is fixedly connected to a universal wheel (6) for construction workers to push the first railing (1) and the second railing (2) to move on the ground; the first railing (1) is provided with an adjustment mechanism for pushing the plurality of second railings (2) to be unfolded and stored; A fixed block (25) is fixedly connected to the columnar sleeve (7) near the bottom of the first railing (1), the end of the fixed block (25) is fixedly connected to the track rod (14), the inner wall of the track rod (14) is connected to the moving block (15) for lifting and moving, the bottom end of the moving block (15) is fixedly connected to the insertion rod (16) for fixing and supporting the first railing (1) on the ground, and the base (5) is provided with an auxiliary mechanism for driving the insertion rod (16) to be inserted into the ground; The auxiliary mechanism comprises a fixed rod (20) fixedly connected to a base (5) on a side close to the track rod (14); an end of the fixed rod (20) is connected to a bevel rod (21) for fixed-axis rotation; a torsion spring (24) is fixedly connected to the opposite surface of the bevel rod (21) and the fixed rod (20) for guiding the bevel rod (21) to reset and rotate; a first clamping block (22) for locking the moving block (15) is fixedly connected to the side of the bevel rod (21) close to the moving block (15); and a second clamping block (23) engaged with the first clamping block (22) is fixedly connected to the side of the moving block (15) close to the bevel rod (21).

2. A safety protection device for construction project management according to claim 1, characterized in that: The outer contours of the first railing (1) and the second railing (2) near the bottom are both sleeved with cylindrical sleeves (7) for lifting and reciprocating movement, and the outer contours of each cylindrical sleeve (7) at symmetrical positions on both sides are fixedly connected to second fixing seats (8), and each second fixing seat (8) is rotatably connected to a telescopic rod (9) for pushing the second railing (2) to unfold and retract, and the center position where each two adjacent telescopic rods (9) intersect is penetrated and rotatably connected.

3. A safety protection device for construction project management according to claim 2, characterized in that: The first railing (1) and the second railing (2) are both fixedly connected to third fixing seats (10) at symmetrical positions on both sides near the bottom ends, and one end of each telescopic rod (9) away from the second fixing seat (8) is respectively connected to the third fixing seat (10) on the adjacent side for fixed axis rotation.

4. A safety protection device for construction project management according to claim 3, characterized in that: The adjustment mechanism comprises a first railing (1) having lifting grooves (102) formed at symmetrical positions on both sides near the bottom end, the inner walls of the lifting grooves (102) on both sides being movably connected to lifting blocks (11) for lifting and reciprocating movement, and the opposite ends of the two lifting blocks (11) are fixedly connected to the inner walls of the cylindrical sleeves (7) at corresponding positions.

5. A safety protection device for construction project management according to claim 4, characterized in that: The first railing (1) is provided with a cavity (101) connected to the lifting groove (102); the inner wall of the cavity (101) is connected to a threaded sleeve (12) for pulling the cylindrical sleeve (7) to move up and down; the opposite ends of the two lifting blocks (11) are fixedly supported on the outer contour of the threaded sleeve (12); the end of the first railing (1) is penetrated and connected to a threaded rod (13) driven to rotate by a power mechanism in a fixed axis; and the inner wall of the threaded sleeve (12) is penetrated by the threaded rod (13) and is screwed.

6. The safety protection device for construction project management according to claim 1, characterized in that: A slope block (17) adapted to the slope of the slope rod (21) is fixedly connected to the side of the end of the track rod (14) away from the fixed block (25); a limit rod (18) is passed through the slope block (17) and is connected to support the moving block (15) so as to be lifted and lowered, and the bottom end of the limit rod (18) is fixedly connected to the moving block (15); a spring (19) is fixedly connected to the opposite surface of the slope block (17) and the moving block (15) to guide the moving block (15) to perform a reset movement.

7. The safety protection device for construction project management according to claim 5, characterized in that: The second railing (2) is provided with a warning mechanism for warning construction workers, wherein the warning mechanism comprises a warning light (26) fixedly connected to the end of each second railing (2), and a push switch (27) electrically connected to the warning light (26) fixedly connected to the bottom end of the cavity (101).

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